import axios, { type AxiosResponse, type InternalAxiosRequestConfig } from "axios";
import { getRefreshToken, getTenantId, getToken } from "@/utils/auth";
import { tansParams } from "@/utils/asiainfo";
import cache from "@/plugins/cache";
import { HttpStatus } from "@/enums/RespEnum";
import { errorCode } from "@/utils/errorCode";
import { Message } from "@arco-design/web-vue";
import useUserStore from "@/store/modules/user";
import dayjs from "dayjs";

/**
 * 是否显示重新登录
 */
export const isReLogin = { show: false };

/**
 * 全局头
 */
export const globalHeaders = () => {
  return {
    Authorization: "Bearer " + getToken(),
    clientId: import.meta.env.VITE_APP_CLIENT_ID
  };
};

axios.defaults.headers["Content-Type"] = "application/json;charset=utf-8";
axios.defaults.headers["clientId"] = import.meta.env.VITE_APP_CLIENT_ID;

/**
 * 创建 axios 实例
 */
const service = axios.create({
  baseURL: import.meta.env.VITE_APP_BASE_API,
  timeout: 60000
});

/**
 * 请求拦截器
 */
service.interceptors.request.use(
  (config: InternalAxiosRequestConfig) => {
    const isToken = (config.headers || {}).isToken === false;
    // 是否需要防止数据重复提交
    const isRepeatSubmit = !(config.headers || {}).repeatSubmit;
    if (getToken() && !isToken) {
      config.headers["Authorization"] = "Bearer " + getToken(); // 让每个请求携带自定义token 请根据实际情况自行修改
    }
    if (getTenantId()) {
      config.headers["tenantId"] = getTenantId(); // 让每个请求携带自定义租户ID 请根据实际情况自行修改
    }

    // get请求映射params参数
    if (config.method === "get" && config.params) {
      let url = config.url + "?" + tansParams(config.params);
      url = url.slice(0, -1);
      config.params = {};
      config.url = url;
    }

    if (!isRepeatSubmit && (config.method === "post" || config.method === "put")) {
      const requestObj = {
        url: config.url,
        data: typeof config.data === "object" ? JSON.stringify(config.data) : config.data,
        time: new Date().getTime()
      };

      const sessionObj = cache.session.getJSON("sessionObj");

      if (sessionObj === undefined || sessionObj === null || sessionObj === "") {
        cache.session.setJSON("sessionObj", requestObj);
      } else {
        const s_url = sessionObj.url; // 请求地址
        const s_data = sessionObj.data; // 请求数据
        const s_time = sessionObj.time; // 请求时间
        const interval = 500; // 间隔时间(ms)，小于此时间视为重复提交
        if (s_data === requestObj.data && requestObj.time - s_time < interval && s_url === requestObj.url) {
          const message = "数据正在处理，请勿重复提交";
          console.warn(`[${s_url}]: ` + message);
          return Promise.reject(new Error(message));
        } else {
          cache.session.setJSON("sessionObj", requestObj);
        }
      }
    }
    if (config.method === "get") {
      config.params = {
        ...config.data,
        _t: dayjs().unix() // 使用 dayjs 获取当前时间的秒级时间戳
      };
    }
    // FormData数据去请求头Content-Type
    if (config.data instanceof FormData) {
      delete config.headers["Content-Type"];
    }
    return config;
  },
  (error: any) => {
    return Promise.reject(error);
  }
);

let isRefreshing = false;
let requests: ((token: string) => void)[] = []; // 请求队列

/***
 * 响应拦截器
 */
service.interceptors.response.use(
  async (res: AxiosResponse) => {
    const config = res.config;
    // 未设置状态码则默认成功状态
    const code = res.data.code || HttpStatus.SUCCESS;
    // 获取错误信息
    const msg = errorCode[code] || res.data.msg || errorCode["default"];
    // 二进制数据则直接返回
    if (res.request.responseType === "blob" || res.request.responseType === "arraybuffer") {
      return res.data;
    }
    if (code === 401) {
      // 断言定义变量_retry 是否为未授权错误且未重试过 防止多次调用refreshToken接口
      if (!isRefreshing) {
        isRefreshing = true;
        return useUserStore()
          .refreshToken()
          .then(async (response: any) => {
            if (response.data.access_token) {
              requests.forEach(cb => cb(response.data.access_token));
              requests = []; // 重新请求完清空
              isRefreshing = false;
              return service(config);
            } else {
              await handleLogout();
              return Promise.reject(res);
            }
          })
          .catch(async () => {
            await handleLogout();
            return Promise.reject(res);
          });
      } else {
        return new Promise(resolve => {
          requests.push((token: string) => {
            config.headers["Authorization"] = "Bearer " + token;
            resolve(service(config));
          });
        });
      }
    } else if (code === HttpStatus.SERVER_ERROR) {
      Message.error({ content: msg });
      return Promise.reject(new Error(msg));
    } else if (code === HttpStatus.WARN) {
      Message.warning({ content: msg });
      return Promise.reject(new Error(msg));
    } else if (code !== HttpStatus.SUCCESS) {
      Message.error({ content: msg });
      return Promise.reject("error");
    } else {
      return Promise.resolve(res.data);
    }
  },
  (error: any) => {
    let { message } = error;
    if (message == "Network Error") {
      message = "后端接口连接异常";
    } else if (message.includes("timeout")) {
      message = "系统接口请求超时";
    } else if (message.includes("Request failed with status code")) {
      message = "系统接口" + message.substr(message.length - 3) + "异常";
    }
    Message.error({ content: message, duration: 5 * 1000 });
    return Promise.reject(error);
  }
);

/**
 * 退出
 */
export const handleLogout = async () => {
  isRefreshing = false;
  Message.error({ content: "登录状态已过期，请重新登录" });
  useUserStore()
    .logout(getRefreshToken())
    .then(() => {
      location.href = import.meta.env.VITE_APP_CONTEXT_PATH + "index";
    });
};

/***
 * 导出 axios 实例
 */
export default service;
